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  <h3><a href="../contents.html">Table of Contents</a></h3>
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<li><a class="reference internal" href="#">Datetime Support Functions</a><ul>
<li><a class="reference internal" href="#business-day-functions">Business Day Functions</a></li>
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  <div class="section" id="datetime-support-functions">
<span id="routines-datetime"></span><h1>Datetime Support Functions<a class="headerlink" href="#datetime-support-functions" title="Permalink to this headline">¶</a></h1>
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<tr class="row-odd"><td><p><a class="reference internal" href="generated/numpy.datetime_as_string.html#numpy.datetime_as_string" title="numpy.datetime_as_string"><code class="xref py py-obj docutils literal notranslate"><span class="pre">datetime_as_string</span></code></a>(arr[, unit, timezone, …])</p></td>
<td><p>Convert an array of datetimes into an array of strings.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="generated/numpy.datetime_data.html#numpy.datetime_data" title="numpy.datetime_data"><code class="xref py py-obj docutils literal notranslate"><span class="pre">datetime_data</span></code></a>(dtype, /)</p></td>
<td><p>Get information about the step size of a date or time type.</p></td>
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</table>
<div class="section" id="business-day-functions">
<h2>Business Day Functions<a class="headerlink" href="#business-day-functions" title="Permalink to this headline">¶</a></h2>
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<tr class="row-odd"><td><p><a class="reference internal" href="generated/numpy.busdaycalendar.html#numpy.busdaycalendar" title="numpy.busdaycalendar"><code class="xref py py-obj docutils literal notranslate"><span class="pre">busdaycalendar</span></code></a>([weekmask, holidays])</p></td>
<td><p>A business day calendar object that efficiently stores information defining valid days for the busday family of functions.</p></td>
</tr>
<tr class="row-even"><td><p><a class="reference internal" href="generated/numpy.is_busday.html#numpy.is_busday" title="numpy.is_busday"><code class="xref py py-obj docutils literal notranslate"><span class="pre">is_busday</span></code></a>(dates[, weekmask, holidays, …])</p></td>
<td><p>Calculates which of the given dates are valid days, and which are not.</p></td>
</tr>
<tr class="row-odd"><td><p><a class="reference internal" href="generated/numpy.busday_offset.html#numpy.busday_offset" title="numpy.busday_offset"><code class="xref py py-obj docutils literal notranslate"><span class="pre">busday_offset</span></code></a>(dates, offsets[, roll, …])</p></td>
<td><p>First adjusts the date to fall on a valid day according to the <code class="docutils literal notranslate"><span class="pre">roll</span></code> rule, then applies offsets to the given dates counted in valid days.</p></td>
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<tr class="row-even"><td><p><a class="reference internal" href="generated/numpy.busday_count.html#numpy.busday_count" title="numpy.busday_count"><code class="xref py py-obj docutils literal notranslate"><span class="pre">busday_count</span></code></a>(begindates, enddates[, …])</p></td>
<td><p>Counts the number of valid days between <em class="xref py py-obj">begindates</em> and <em class="xref py py-obj">enddates</em>, not including the day of <em class="xref py py-obj">enddates</em>.</p></td>
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